Request for large gnuradio program

I am working on parallelizing gnuradio on several Singleboard Computers
over PCIe to potentially resolve a scaling problem around
memory-bandwidth. In order to benchmark my project, I need a large,
non-trivial system that could stress the system’s limits. Does anyone
know of, or have access to a gnuradio program with high-throughput?

Maybe an LTE, WIFI, etc. program?